Yarim Fel Syndrome was a terminal Cardassian illness. The patient's life could be prolonged by hexadrin therapy or neuro-regeneration procedures, but the outcome was always the same.

The disease spread throughout the patient's body and would cause shooting pain. Once the digestive tract, cartilage tissue, and respiratory system were infected the patient was expected to live for about a week, depending on his current physical state. Eventually, the disease would cause central nervous system failure, resulting in the death of the patient.

Tekeny Ghemor died of Yarim Fel Syndrome in 2373. (DS9: "Ties of Blood and Water")